Mariclare Costello
Acting
Born 1936-02-06
Died 2026-04-17
Peoria, Illinois, USA
32 credits
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Mariclare Catherine Costello (February 3, 1936 – April 17, 2026) was an American actress. She was a lifetime member of The Actors Studio. Costello's most notable role was that of Rosemary Hunter Fordwick on the television series The Waltons, from 1972 to 1977. In 1977, after her role on The Waltons, she played matriarch Maggie Fitzpatrick on the short-lived drama show The Fitzpatricks.
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Filmography
Murder, She Wrote
Chicago Hope
The Waltons
Hart to Hart
The Incredible Hulk
Lou Grant
Kojak
Indecent Proposal
Ordinary People
The Adventures of Buckaroo Banzai Across the 8th Dimension
The Fitzpatricks
Nightmares
Raid on Entebbe
American Harvest
Let's Scare Jessica to Death
The Execution of Private Slovik
She Said No
Coward of the County
Heart of a Champion: The Ray Mancini Story
A Sensitive, Passionate Man
After the Fall
The Gun
Conspiracy of Terror
All God's Children
Appearances
The Boy Who Drank Too Much
Pound
Shadow of the Blair Witch
Victims for Victims: The Theresa Saldana Story
Skeezer
Territorial Men
Going Where I've Never Been: The Photography of Diane Arbus
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